package io.datajek.springbasics.movierecommendersystem.lesson9;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class ContentBasedFilter implements Filter{

    private static int instances = 0;

    @Autowired
    private Movie movie;

    public ContentBasedFilter(Movie movie) {
        super();
        this.movie = movie;
        instances++;
        System.out.println("ContentBasedFilter constructor called");
    }

    public Movie getMovie() {
        return movie;
    }

    public static int getInstances(){
        return ContentBasedFilter.instances;
    }

    //getRecommendations将一部电影作为输入，并返回类似电影的列表。
    public String[] getRecommendations(String movie) {
        //计算电影之间的相似度
        //返回电影推荐
        return new String[] {"Happy Feet", "Ice Age", "Shark Tale"};
    }
}